Ni-Catalyzed α-Selective C-H Borylations of Naphthalene-Based Aromatic Compounds
Toshiyuki Kamei1, Soshi Nishino1, Akiko Yagi2
1Department of Chemical Engineering , National Institute of Technology, Nara College , Yamatokoriyama, Nara , 639-1080 , Japan.
Abstract:
The ability of α-borylated naphthalene-based aromatic compounds is important because it provides ready access to interesting novel extended π-systems. In this report, we disclose the Ni-catalyzed α-selective C-H borylations of naphthalene-based aromatic compounds. The reaction proceeds with peri-xanthenoxanthene and other aromatic compounds to regioselectively afford the α-borylated products without directing groups. The selectivities of these transformations are different from those of Ir-catalyzed C-H borylation reactions and can be used in a complementary manner.
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